Probe measurements in argon plasma jets operated in ambient argon

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Plasma Chemistry and Plasma Processing; (USA)

DOI:https://doi.org/10.1007/BF01054288· OSTI ID:6985374

Capetti, A; Pfender, E ^[1]

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1. Univ. of Minnesota, Minneapolis (USA)

Measurements of local enthalpies and velocities have been performed in plasma jets generated by a DC plasma spray torch, using an enthalpy probe. The torch has been operated in an argon confined atmosphere at different currents and argon flow rates. The validity of the measured enthalpy and velocity profiles has been checked by performing energy flux and mass flux balances, which show reasonable agreement between the input quantities, measured independently, and those obtained by integrating over the experimental profiles. The data are compared with those obtained by operating the same torch in ambient air. The results show that temperatures and velocities measured in pure argon are substantially higher than those in air, and consequently, the jets in argon appear wider and substantially longer.

• DOE Contract Number: FG02-85ER13433
• OSTI ID: 6985374
• Journal Information: Plasma Chemistry and Plasma Processing; (USA), Journal Name: Plasma Chemistry and Plasma Processing; (USA) Vol. 9:2; ISSN PCPPD; ISSN 0272-4324
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ACCURACY
ARGON IONS
CHARGED PARTICLES
DENSITY
DEPOSITION
EFFICIENCY
ENERGY EFFICIENCY
ENERGY LOSSES
ENERGY TRANSFER
ENTHALPY
FLOW RATE
FLUID FLOW
GAS FLOW
HEAT FLUX
HEAT LOSSES
HEAT TRANSFER
HYDROGEN COMPOUNDS
IONS
LIQUID FLOW
LOSSES
MASS TRANSFER
NOZZLES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLASMA ARC SPRAYING
PLASMA DIAGNOSTICS
PLASMA GUNS
PLASMA JETS
PROBES
SPECIFIC HEAT
SPRAY COATING
SURFACE COATING
TEMPERATURE MEASUREMENT
THERMODYNAMIC PROPERTIES
WATER